WS:Fax Display Manager is a must for everyone that has Outlook and does not require to see the many fax addresses that show in the address dialogue window when you address an email.
WS:Repeat Appointment allows you to automatically create an appointment in your calendar with multiple dates that do not conform to a regular pattern, impossible to do with the Outlook recurrence function.
WS:Reverse View reorders Outlook message threads to make them easier to read in chronological order, collating the message bodies into a single text document that can be saved or printed.